baber/WOPTO huggingface dataset:
Patent GB-522840-A (GB)
Title: Manufacture of surface-active compounds
Filed: 1938-12-19
Abstract: 522,840. Making dispersions. DU PONT DE NEMOURS & CO., E. I. Dec. 19, 1938, No. 36927. Convention date, Dec. 18, 1937. [Class 1 (i)] [Also in Group IV] Secondary alkyl monosulphonic acids and their salts having the formula R.CH.R<SP>1</SP> in X which X is a sulphonic acid or sulphonate group and R and R<SP>1</SP> are alkyl groups each of which contains at least two carbon atoms, and are such that the group R.C.R<SP>1</SP> contains 10-16 carbon atoms at least 10 of which form a straight chain, are prepared by treating the corresponding mercaptans with an oxidizing agent, or the corresponding halide or sodium sulphate with sodium sulphite. The products are stated to be dispersing agents. In examples: (1) sodium pentadecyl-8-sulphate is treated with sodium sulphite in the presence of a small quantity of aniline and sodium dihydrogenphosphate to give sodium pentadecyl-8-sulphonate ; (2) sodium pentadecyl-4-sulphonate is prepared by treating sodium pentadecyl-4-sulphate with sodium sulphite ; (3) pentadecyl-8-mercaptan is oxidized with nitric acid; the product is neutralized, dissolved in aqueous methanol and extracted with ether to remove impurities. The use of pentadecyl-3-, 4-, 5-, 6- and 7- mercaptan, tridecyl - 7 - mercaptan, dodecyl - 6 - mercaptan, 7 - ethyl - 2 - methylundecyl - 4 - mercaptan, 3 : 9 - diethylundecyl - 6 - mercap - tan, 3 - ethyldecyl - 6 - mercaptan, undecyl - 4 - mercaptan and 2 - methylundecyl - 5 - mercap - tan is mentioned. For neutralizing the sulphonic acids potassium, ammonium, calcium and magnesium hydroxides and dimethylamine, ethylamine, diethanolamine, butylantine, glucamine, methylglucamine, pyridine, piperidine, cyclohexylamine and toluidine may be used. The Specification as open to inspection under Sect. 91 comprises also the use of mixtures of secondary mercaptans and includes an example in which. mercaptans prepared from chlorinated cetane are used as starting material, The oxidation of thiosulphuric acid esters, the treatment of secondary alcohols with methanedisulphonic acid and the sulphonation of secondary olefines are further methods which are described. This subject-matter does not appear in the Specification as accepted.
Patent GB-1337153-A (GB)
Title: Method and apparatus for forming a slide fastener coil
Inventor: BURBANK J E
IPC: B29D5/06
Filed: 1971-08-05
Abstract: 1337153 Coiling helices; making slide fasteners SCOVILL MFG CO 5 Aug 1971 [26 Aug 1970] 36955/71 Headings B3E and B3A [Also in Division F2] A method of making slide fastener coils C, Fig. 8, uses the apparatus 10 shown and comprises winding a thermoplastic filament about a mandrel 14 to form a helix, engaging the individual windings of the helix between successive teeth of two opposed toothed members or combs 16, 18, the teeth spacing defining the pitch of the helix, and advancing the helix in the longitudinal direction of the mandrel by transferring the windings in succession alternately from one comb to the other by relative longitudinal movement and combined transverse movement of the combs. The method is characterized in that while the helix is supported on both sides of the combs 16, 18 by, for example, grooves 30, 32 in frame 24, a portion of the helix is engaged by the spine 36, Fig. 4, of one of the toothed combs to form an indentation in the helix. Another indentation may be formed in the opposite portion of the helix by the other comb. An interlockable head may be made by a punch P.
Patent GB-316126-A (GB)
Title: Process for the production of higher hydrocarbons
IPC: C07C2/76
Filed: 1928-12-14
Abstract: 316,126. Fischer, F., and Pichler, H. July 23, 1928, [Convention date]. Aromatic and unsaturated aliphatic hydrocarbons are prepared by heating methane to temperatures about 1000‹ C. for not more than one second without a catalyst. In an example, methane is heated to 1000-1100‹ for 1/5 to 1/20 of one second, benzene and other aromatic hydrocarbons of higher boiling point being separated. The methane mav be dilutel with coke gas, and ordinary or reduced pressure may be used. The hydrogen produced may be reconverted to methane by reaction with carbon monoxide or dioxide using a nickel catalyst, or to mineral oils using suitable catalysts, or may be used to hydrogenate the hydrocarbons produced
Patent GB-523002-A (GB)
Title: Centrifuge for granular material for cleaning and scaling plants
IPC: B24C5/06
Filed: 1938-12-21
Abstract: 523,002. Sand-blast. GROCHOLL, K. Dec. 21, 1938, No. 37139. Convention date, Nov. 4. [Class 60] [Also in Group II] A throwing wheel or distributer, for centrifuging granular material such as sand in cleaning and scaling plants, has a number of blades 4 the inner parts of which are bent relative to the outer parts to a degree depending on the desired direction of throw, the positions of the outer parts of the blades, and the nature of the sand. The blades are mounted on holders 3 on the disc 2, or they may be arranged between two discs, and the holders 3 may be adjustable. Sand is supplied through the pipe 5 and this may have a rotatable deflector 6 at its end so that the direction of feed to the blades 4 may be varied. The sand may be supplied eccentrically to the disc 2. The striking sides of the blades may be channel shaped and formed with transverse ribs at their inner ends. When the inner parts of the blades 4 are bent as shown, the flow of sand from the blades is retarded ; the length and shape of the inner parts are determined by tests and the parts are adjusted to obtain the discharge in the desired direction.
Patent GB-1138053-A (GB)
Title: Production of nylon fibres of improved heat resistance
IPC: C08G18/60
Filed: 1966-08-22
Abstract: 1,138,053. Increasing melting point of nylon fibres. SOO VALLEY CO. 22 Aug., 1966, [14 Oct., 1965], No. 37469/66. Heading B5B. [Also in Division C3] Nylon fibres are reacted in the absence of air with a polyepoxy compound in which at least one of the epoxy radicals is attached to an aliphatic group, or with an organic polyisocyanate, at an elevated temperature below the melting point of the fibres to increase their melting point. An example of a polyepoxy compound which may be used for the reaction is having the following structural formula vinylcyclohexene dioxide. Other polyepoxides which can be used for the reaction include the dioxides of divinyl benzenes, polyepoxy compounds obtained by the known reaction of one mole of a diamine with two moles of epichlorohydrin or two moles of ethylene oxide, and diepoxy compounds obtained by the known reaction of two moles of epichlorohydrin with one mole of a dihydric phenol in the presence of an alkali. Organic-polyisocyanates which may be used include 2,4-toluene diisocyanate, hexamethylene diisocyanate, 4,41-diphenylmethane diisocyanate, 4,4<SP>1</SP>,4<SP>11</SP>-triphenylmethane diisocyanate, 4,4<SP>1</SP>-xenylene diisocyanate, dimethyl xenylene diisocyanates and chlorophenylene-2, 2, 4-diisocyanate. In an example, a coil of a nylon-6 monofilament is immersed for 7¢ hours in vinylcyclohexene dioxide maintained at a temperature of 145‹ to 149‹ C. and the monofilament then removed, washed in benzene and acetone and dried. It is found that the weight of the thread has increased 42% and that its melting point has increased from its original value of 224‹ C. to about 269‹ to 275‹ C.
Patent GB-1437986-A (GB)
IPC: G06F12/08
Filed: 1973-08-09
Abstract: 1437986 Resolving priority conflicts HONEYWELL INFORMATION SYSTEMS Inc 9 Aug 1973 [5 Oct 1972] 37742/73 Heading G4A In apparatus for resolving priority conflicts between main storage access requests from a central processing unit, buffer store and input/ output control unit, an override assurance network is included including delay circuitry to provide a time interval during which a higher priority device, e.g. the input/output controller may override lower priority devices such as the central processing unit or buffer store. Override control.-If the buffer store or central processing unit is given control of the main storage but is waiting for the required memory module to become free, e.g. if the buffer store is waiting on memory module 0, the input/output control may take control, if it requests access before a memory busy signal blocking out other units is issued. A signal (NBONL 10, Fig. 7, not shown) indicates that the buffer store has been assigned access but a further signal (MNBZ000) is low if the memory is busy so that AND gates (603A, 605A) are disabled resulting in a further signal (NMG0011) being low to prevent access. If the input/output control then requests access by a further signal (MBNG01S, Fig. 9, not shown) a signal (N10CT10) is high and is inverted to derive a low signal (N10CT20). This disables an AND gate (622D) which causes a signal (NBONL10) to go low so that the buffer store loses control of the module. The high signal (N10CT10) results in a signal from an AND gate (541A, Fig. 5, not shown) to a variable delay line (543A), the output from which enables a further AND gate (547A) to derive a signal (N10CD10). This results in an AND gate (610A, Fig. 7, not shown) being enabled when the memory is no longer busy to derive a signal (NMG0010) giving control to the input/output controller. Override assurance network.-To prevent the main memory module busy signal from changing state at a critical period request signals from the buffer or central processing unit are delayed in a variable delay line 505C (Fig. 6A) which is part of a delay loop comprising delays 505C, AND gate 507C, inverter 5112C and delay line 520C. The output from AND gate 507 is fed via inverter 514C to a further delay line 574C to generate a delayed signal NBSIN10. This signal is applied to a latch circuit (Fig. 6B, not shown) to maintain the state of the memory busy signal (MNBZ000) for an extra 15 monoseconds. This provides sufficient interval to eliminate any uncertainty during the time when the input/output controller desires to override the other units.
Patent GB-1181626-A (GB)
Title: Temperature Control System for the Passenger Compartment of an Automobile.
IPC: G05D23/19
Filed: 1968-08-08
Abstract: 1,181,626. Ventilating vehicles. GENERAL MOTORS CORP. 8 Aug., 1968 [24 Aug., 1967], No.37821/68. Heading F4V. [Also in Division G3] A temperature control system for a motor vehicle includes an element 26 for regulating the flow of air transmitting heat from engine coolant to a passenger compartment 20, a diaphragm type motor 29 operatively connected to the element, a vacuum line 39 connected to the motor and intended for connection to a vacuum source 37, such as engine manifold, a thermostatic control unit 42 responsive to temperature changes in the passenger compartment so as to control the vacuum applied to the motor 29, a blower 78 to provide the flow of air transmitting heat from the engine coolant to the passenger compartment, a relay device 40 to control the vacuum in a line 38 leading to the thermostatic control unit 42, contacts 60, 62, in the relay device arranged, when closed, to operate the blower, and an engine coolant sensor 86 to close the vacuum line 38 and open the contacts 60, 62 when the engine coolant is below a predetermined temperature. The thermostatic control unit has a valve 132 actuated by a bi-metal 128 to allow air to bleed through a filter 124 into the vacuum line 39 and adjust the diaphragm motor 29. If no vacuum is applied to the motor, a spring 32 causes the element 26 to close a port 22 allowing unheated outside air to flow into the compartment 20 which also receives heated air from a second port 24 and a heater core 14. The sensor 86 is in the form of a temperature-dependent switch which energizes a coil 68 from a battery 100 to separate the contacts 60, 62, and close the line 38 with a soft pad 54 when the coolant temperature is below 110‹ F. so that no cold air is forced by the blower into the passenger compartment and the spring 32 closes the element 26. Reference has been directed by the Comptroller to Specification 1,121,971.
Patent GB-883896-A (GB)
Title: Ball joints
IPC: F16C11/06
Filed: 1958-11-25
Abstract: 883,896. Ball joints. ALEXANDER, L. W. Nov. 25, 1958, No. 37905/58. Class 65(2). A ball joint comprises first and second cupped shells 32, 34 (Fig. 2) of resilient material (e.g. resilient sheet steel) having concave part-spherical bearing surfaces facing one another and transversely-projecting rim portions 36, 52 spaced apart from one another. the first shell being mountable in an aperture 40 in a support 16 with its rim portion abutting the support and a ball member 24 being disposed in rocking engagement with the bearing surfaces and secured to an elongated ball pin 18 extending through an aperture 50 in the second shell, means (e.g. a ring 58) engageable with the rim portion of the second shell being provided for urging the ball member into resilient engagement with the first shell. The ring 58 is adjustably spaced from the support 16 by bolts 69. The rim portion 36 comprises circumferentially spaced quadrant flanges 38 separated by integral upturned lugs 46 engageable with the walls of the aperture 40 to provide resilient lateral support to the shell 32. The ball member 24 is formed by sintering powdered synthetic plastic material (e.g. nylon) around the head 20 of the pin 18. In a modification apertures 50 are formed in both shells and the ball member 24 is formed on a rod which extends out of both apertures and is roughened or provided with an annular enlargement to anchor the ball member thereon. In a further modification the rims include cupped annular spring washers located between the flanges 38, 52 and the support 16 and ring 58 respectively. In the joint shown in Fig. 6, the rims comprise flanges 144, 146 on the shells 148, 150 respectively, and spring washers 136, 138. Laminated shims 160 are located between the flanges so that the tightness of the ball member 24 within the shells is controlled independently of the spring load imposed by the washers. The washers may be single elements or may comprise several washer-components.
Patent GB-842419-A (GB)
Title: Improvements in tubulous vapour generating and superheating units
IPC: F22B21/34
Filed: 1956-12-13
Abstract: 842,419. Regulating steam temperature in boilers. BABCOCK & WILCOX Ltd. Dec. 13, 1956 [Dec. 16, 1955], No. 38043/56. Class 123(3)  In a water-tube steam boiler of the type described in detail in Specification 631,528 consisting of an upright furnace chamber 10 downwardly fired by burners 24 and having a hopper bottom 12 the sloping walls of which, together with the chamber walls, are lined with steam generating tubes, a gas outlet 40 being disposed at an intermediate position relative to the height of the furnace and leading into a pass 42 containing primary and secondary superheaters 44, 46 and an economizer 84, the steam temperature is maintained constant under conditions of decreasing load by recirculating increasing quantities of cooled flue gas to the furnace at a level therein below the level of the outlet 40. The gas is withdrawn from the top of the pass 42 by a fan 90 which delivers it through a duct 96 to a cross-duct located adjacent the hopper throat and having uniformly spaced openings thereinto which distribute the gas evenly throughout the length of the hopper. In a modification, the flue gas is introduced into the furnace through a horizontal row of openings in the front wall thereof, the row of openings being disposed just below the level of the opening 40 in the rear wall. The operation of the gas recirculation system results in the filling of the lower part of the furnace with cool gases thus reducing heat absorption in the furnace and the residence time therein of the fresh combustion gases, thereby increasing the heat content in the gases available for superheating. The rate of gas recirculation is controlled according to variations in steam flow and temperature, for example by a system such as that described in Specification 707,174. Reverse flow into the fan 90 at low loads may be prevented by the use of a control system as described in Specification 803,903.
Patent GB-1009455-A (GB)
Title: Improvements in or relating to electrical contacts
IPC: H01H1/02
Filed: 1962-10-09
Abstract: 1,009,455. Contact members for switches. WESTERN ELECTRIC CO. Inc. Oct. 9, 1962 [Oct. 31, 1961], No. 38121/62. Heading H2B. An electric contact comprises a substrate on which are deposited successively a first layer 24 of gold, lead, copper or bismuth and a second layer 23 of tin, the metal of the first layer inhibiting the formation of " whiskers " on the tin surface. The substrate is constituted by a relay spring 21, which is preferably of steel. The contacts are produced by successive steps of vacuum deposition.
Patent GB-1024069-A (GB)
Title: Quickly detachable powered winch mounting means
Inventor: HEMBLING WILLIAM GEORGE
IPC: B60P3/10
Filed: 1964-09-18
Abstract: 1,024,069. Winches; anchoring. F. E. AHLBIN. Sept. 18, 1964, No. 38263/64. Heading B8B. [Also in Division E2] Means for detachably mounting a winch W, Fig. 2, on the ball hitch pin 31 of a vehicle comprises a base-plate 10, with a keyhole slot 14 for engagement over the pin 31, the base 23 of the winch and the base-plate 10 also having complementary stud and keyhole slot connections 17, 25. The arrangement permits the winch W to be detachably mounted directly on other parts of a vehicle or trailer where baseplates having corresponding studs or key-hole slots are provided.
Patent GB-909151-A (GB)
Title: Electric arc welding
IPC: H05B7/02
Filed: 1960-11-08
Abstract: 909,151. Control systems for electric welding arcs. WESTINGHOUSE ELECTRIC CORPORATION. Nov. 8, 1960 [Nov. 19, 1959], No. 38271/60. Class 38 (4). By varying the resistance of a variable resistor 28 in parallel with an auxiliary winding 26 closely coupled to a main winding 24 of a magnetically cored inductor I, the inductance of the main winding in series between a D.C. power supply including a rectifier Rx preferably of the silicon type, and a welding electrode E may be precisely adjusted to enable stable, spatter-free arc operation to be produced. The setting of the resistor 28 and thus the inductance of the main winding 24 may be correlated with the potential between terminals 19, 21, so that metal transfer of the droplet or spray type occurs during welding. The response of the inductor I to an increase or decrease in welding current may be affected by the inclusion of a rectifier in the circuit which shorts out a portion of the resistor 28 under appropriate welding conditions so that large increases in welding current are prevented during short-circuit conditions whilst permitting a large peak voltage of correct magnitude and duration for arc initiation to occur. Provision is included to reverse the connections to the rectifier when the polarity of the electrodes is changed. Winding 24 or 26 may be connected in a series or parallel resonant circuit by the inclusion of a variable capacitor, the circuit frequency then being tuned to the frequency of droplet deposition. The resistance of the inductor I may be suppressed during arc initiation by relay contacts which short-circuit the auxiliary winding 26 when no welding current flows through the main winding 24 and a series-connected relay coil to the electrode E. Specification 876,864 is referred to.
Patent GB-1468286-A (GB)
Title: Process for producing photographic silver halide emulsions
IPC: G03C1/005
Filed: 1974-09-02
Abstract: 1468286 Photographic silver halide emulsions E I DU PONT DE NEMOURS & CO 2 Sept 1974 [3 Sept 1973] 38303/74 Heading G2C A photographic silver halide core-and-shell emulsion suitable for use as a lith emulsion is made by forming an emulsion of silver chloride grains, converting said grains into silver bromide by treatment with an aqueous solution of a bromide and then precipitating silver chloride on to the silver bromide grains thus obtained to form grains having a core-and-shell structure, the aqueous bromide solution and/or the silver chloride shell optionally containing up to 5 mol. per cent of iodide based on the halide present in said solution or shell. The preferred chloride/bromide ratio of the finished grains is 50/50 to 95/5 based on mol. per centages.
Patent GB-945871-A (GB)
Title: Compressor structure
IPC: F25B31/02
Filed: 1962-10-10
Abstract: 945,871. Friction clutches; lubricating. COPELAND REFRIGERATION CORPORATION. Oct. 10, 1962 [Oct. 16, 1961], No. 38304/62. Headings F2A and F2C. [Also in Division F1] A pulley 110 driven by a prime mover not shown, is freely mounted on the hub 88 of a clutch ring 86 fixed to the tapered end 89 of a compressor crank-shaft 22 which is normally driven by a motor 36 and is attached by spring fingers 116 to a ring 114 which when current is passed through a stationary winding 80 is attracted to the ring 86 whereby the pulley is coupled to the shaft 22 and the drive transmitted thereto; the motor 36 being inoperative. The end of shaft 22 remote from pulley 110 is operatively connected to an oil pump 118 of the gear type (see Division F1) having its inlet 150, Fig. 3 (not shown), connected by tubing to a filter 186 in the sump 184 and delivery is effected through tubing 161 and a passage 162 which leads to an axial bore 166 in shafts 22, 34 from which oil is supplied to the connecting-rods 30 of pistons 32 to a shaft seal 74 and to bearings 24, 26.
Patent GB-915957-A (GB)
Title: Improvements in screw-thread rolling appliances
IPC: B21H3/04
Filed: 1960-11-08
Abstract: 915,957. Rolling screw-threads. ACTON BOLT Ltd., and DORSETT, T. F. Nov. 7, 1961 [Nov. 8, 1960], No. 38377/60. Class 83 (4). In a thread rolling tool having opposed rolls mounted on a holder for rotation by a workpiece, indexing apparatus, for returning the rolls after rolling to a desired angular position, is connected by gearing to each roll to rotate at half the roll speed. As shown, a spring- loaded plunger 16, which is restrained against rotation but whose restraints may be angularly adjusted, urges an indexing member 15 to the position shown, gears 24 and 23 transmitting this motion to a roll 10. Specification 842,211 is referred to.
Patent GB-1110958-A (GB)
Title: Heat stabilized vinyl chloride polymer compositions
Inventor: WOOD LOUIS LEONARD
IPC: C08K5/06
Filed: 1965-09-08
Abstract: Polyvinyl chloride is heat stabilized with orthoesters of the formula R1-C(OR)3 or <FORM:1110958/C3/1> in which R1 is C6-C20 alkyl or a phenyl group containing halogen or nitro, R2 is C1-C4 alkylene, X is oxygen or sulphur and R is C1-C12 alkyl.  An ester or polyester plasticizer may be included and the P.V.C. may be a homopolymer or copolymer.